package com.sky.controller.admin;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.StatusConstant;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.mapper.DishMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
* 菜品管理
* */

@Slf4j
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;


    /**
    * 新增菜品
    * */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("新增菜品：{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);
        String key = "dish_" + dishDTO.getCategoryId();
        clearCache(key);
        return Result.success();
    }

    /**
    * 菜品分页查询
    * */
    @ApiOperation("菜品分页查询")
    @GetMapping("/page")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO)
    {
        log.info("菜品分页查询:{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
    * 删除菜品
     *      1.单个删除+批量删除
     *      2.如果菜品正在启售,不允许删除
     *      3.如果菜品被套餐关联,不允许删除
     *      4.删除菜品后,关联的口味数据也需要删除掉
    * */
    @DeleteMapping
    @ApiOperation("删除菜品")
    // @RequestParam注解 自动解析ids ="1,2,3" -> List<Long> ids= {1,2,3};
    public Result delete(@RequestParam List<Long> ids){
        log.info("菜品批量删除:{}",ids);
        dishService.deleteBatch(ids);
        clearCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品和对应的口味数据
     * */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable Long id){
        log.info("根据id查询菜品:{}",id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
    * 修改菜品
    * */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品:{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);
        clearCache("dish_*");
        return Result.success();
    }

    /**
     * 菜品的启售和停售
     * */
    @PostMapping("/status/{status}")
    @ApiOperation("菜品的启售停售")
    public Result startOrStop(@PathVariable Integer status,Long id){
        log.info("启售和停售:{}",status,id);
        dishService.startOrStop(status,id);
        clearCache("dish_*");
        return Result.success();
    }

    /**
    * 根据分类id查询菜品
    * */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }

    private void clearCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
